相关实验视频

Updated: Jun 6, 2025

Rapid, Enzymatic Methods for Amplification of Minimal, Linear Templates for Protein Prototyping using Cell-Free Systems

Rapid, Enzymatic Methods for Amplification of Minimal, Linear Templates for Protein Prototyping using Cell-Free Systems

Published on: June 14, 2021

用牛津纳米孔测序对细胞自由表达模板进行扩大DNA异质性评估

Sepehr Hejazi¹, Afrin Ahsan¹, SeyedMohammad Kashani²

¹Chemical and Biological Engineering, Iowa State University, Ames, IA, United States of America.

|December 3, 2024

概括

牛津纳米孔测序准确量化了来自各种方法的DNA放大错误. 这种技术有助于提高DNA复制精度,用于诸如无细胞蛋白质表达等应用.

科学领域:

分子生物学分子生物学
基因组学就是基因组学.
生物技术是生物技术.

背景情况:

对于分子生物学技术来说,DNA放大是至关重要的.
确保放大DNA的准确性和同质性对于下游应用至关重要.
量化DNA异质性的现有方法可能耗时或缺乏分辨率.

研究的目的:

评估牛津纳米孔测序作为一种方法来量化放大DNA中的异质性.
为了比较不同DNA放大技术的错误率和类型.
建立一个框架来评估基因放大方法的准确性.

主要方法:

牛津纳米孔测序被用来分析通过常规聚合酶链反应 (PCR) 放大的DNA,具有不同的聚合酶忠实度 (OneTaq,Phusion,Q5) 和使用Phi29聚合酶的滚动圆放大 (RCA).
还评估了细菌等离子体放大.
在大序列数据集中的错误分布分析量化了突变类型 (删除,插入,替换),错误概率和位置.
二次验证涉及合成sfGFP光蛋白的发射光谱的分析.

主要成果:

牛津纳米孔测序提供了DNA放大错误的快速量化,包括删除,插入和替换.
Q5和Fusion聚合酶在放大DNA中表现出最低的错误率.
易发生错误的PCR与更广泛的记者蛋白排放光谱相关,验证了DNA错误率的发现.
该研究确定了每个放大技术的特定错误模式和异质性.

结论:

牛津纳米孔测序是量化DNA放大异质性的有效和可访问的工具.
这些发现突出了Q5和聚合酶作为DNA放大高保真性选择.
这种纳米孔测序方法为评估新型基因放大技术的准确性提供了路线图.
提高DNA放大精度的量化可以导致蛋白质更均的无细胞表达.

更多相关视频

Cell-Free Protein Synthesis from Exonuclease-Deficient Cellular Extracts Utilizing Linear DNA Templates

Cell-Free Protein Synthesis from Exonuclease-Deficient Cellular Extracts Utilizing Linear DNA Templates

Published on: August 9, 2022

Integration of Wet and Dry Bench Processes Optimizes Targeted Next-generation Sequencing of Low-quality and Low-quantity Tumor Biopsies

Integration of Wet and Dry Bench Processes Optimizes Targeted Next-generation Sequencing of Low-quality and Low-quantity Tumor Biopsies

Published on: April 11, 2016

相关概念视频

RNA-seq

RNA-seq

RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...

Sanger Sequencing

Sanger Sequencing

DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...